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2. Suppose that the diameters of different types of hairs are 1.7x 10^-4cm, 1.4 x 10^-3cm, 1.2 x 10^-5cm, and 1.9 x 10^-4cm? What is the order of the hairs from least to greatest diameters? (1 point)

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Hey !

 the order of the hairs from least to greatest diameters is : 

1.2 x 10^-5cm   -  1.7x 10^-4cm  -  1.9 x 10^-4cm  - 1.4 x 10^-3cm

MissPhiladelphia
When evaluating a scientific notation, the important thing to remember is that the more negative the exponent of 10 is, the smaller is its value. The opposite is true for positive exponents. With that, the arrangement from least to greatest is:

1.2 x 10^-5cm  <  1.7x 10^-4cm   <   1.9 x 10^-4cm   <   1.4 x 10^-3cm

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